Southern California could experience significant rainfall, potentially leading to flooding, mudslides, and coastal erosion. Past strong El Niño events have caused widespread damage, including property destruction and loss of life. Marine ecosystems may also face challenges, such as increased sea lion strandings, declines in kelp habitats, and disruptions to food chains. Warmer ocean temperatures could lead to more sightings of tropical species, including sharks, and the presence of harmful jellyfish-like creatures. While the likelihood of wetter-than-normal conditions is high, there is no certainty, and the region could still face dry conditions or other indirect impacts.